Ships travel around the world without fuel

The world's first self-powered ship set off from Paris, France, on a six-year round-the-world journey.

The Energy Observerand ship departed on July 15. Video: YouTube.

The Energy Observerand left the port in Paris on July 15, beginning a round-the-world trip that French engineers hope could revolutionize maritime technology, according to Sputnik News.

The ship produces its own energy through solar panels, wind turbines and hydrogen fuel cell systems. Energy Observerand uses solar and wind energy during the day while hydrogen fuel will power the ship at night, created through the electrolysis of seawater.

The 30.5m boat was designed in 1983 for use in ocean racing. Captain Frederic Dahirel and Victorien Erussard spent $5.25 million to repair the boat with the support of a French research institute, turning it into the Energy Observer project.

According to VNE